Just like Eugenia yesterday, I also upgraded my laptop's Ubuntu Feisty installation to Gutsy a few days ago. The upgrade process went completely awry, though, so I was forced to do a fresh install. Not a bad thing, as it gave me the opportunity to take a look at Ubuntu's soon-to-be-released Gutsy Gibbon with GNOME 2.20

"I would say "Your loss, pal!" here. I don't like to mix toolkits as well but I wouldn't settle down with an inferior application just because the better one happens to be coded with the "other toolkit". I mean seriously... Why use any GTK-based music player instead of Amarok, which is hands down the best music player currently available? Why use a Qt vector drawing application when currently there is nothing that beats Inkscape? That reasoning is beyond me..."

Agreed. I think all this fuzz about toolkit wars is total rubbish. Windows Media Player looks totally different from all the other Windows apps and somehow people are fine with that. The latest Office looks totally different from other Windows apps and people are fine with that. Ditto for MSN Messenger. Heck, most commercial Windows apps these days use some kind of custom control or are in some way skinnable, and I don't see people complaining about that.
The difference in looks between GTK and QT is not that great, yet people make a huge deal about this.